- UID
- 9381
- 在线时间
- 小时
- 注册时间
- 2003-8-23
- 最后登录
- 1970-1-1
- 主题
- 帖子
- 性别
- 保密
|
求教 lsat sec3-I-18,19-22
18,Questions 17--18
The question whether intelligent life exists elsewhere in the universe is certainly imprecise, because we are not sure how different from use something might be and still count as "intelligent life" Yet we cannot just decide to define "intelligent life" in some more precise way since it is likely that we will find and recognize intelligent life elsewhere in the universe only if we leave our definitions open to new, unimagined possibilities.
18. The passage, if seen as an objection to an antecedent claim. Challenges that claim by:
(A) showing the claim to be irrelevant to the issue at hand
(B) citing examples that fail to fit proposed definition of "intelligent life"
(C) claiming that "intelligent life" cannot be adequately defined.
(D) arguing that the claim, if acted on, would be counterproductive
(E) maintaining that the claim is not supported by the available evidence.
答案是D， C为什么不对？
19. The efficiency of microwave ovens in destroying the harmful bacteria frequently found in common foods is diminished by the presence of salt in the food being cooked. When heated in a microwave oven, the interior of unsalted food reaches temperatures high enough to kill bacteria that cause food poisoning, but the interior of salted food does not. Scientists theorize that salt effectively blocks the microwaves from that salt effectively blocks the microwaves from heating the interior.
Which one of the following conclusions is most supported by the information above?
(A) The kinds of bacteria that cause food poisoning are more likely to be found on the exterior of food than in the interior of food.
(B) The incidence of serious food poisoning would be significantly reduced if microwave ovens were not used by consumers to cook or reheat food.
(C) The addition of salt to food that has been cooked or reheated in a microwave oven can increase the danger of food poisoning.
(D) The danger of food poisoning can be lessened if salt is not used to prepare foods that are to be cooked in a microwave oven.
(E) Salt is the primary cause of food poisoning resulting from food that is heated in microwave ovens.
答案是D， 为什么C不对？
22. In an experiment, two-year-old boys and their fathers made pie dough together using rolling pins and other utensils. Each father-son pair used a rolling pin that was distinctively different from those used by the other, "father-son pairs, and each father repeated the phrase "rolling pin" each time his son used it. But when the children were asked to identify all of the rolling pins among a group of kitchen utensils that included several rolling pins, each child picked only the one that he had used.
Which one of the following inferences is most supported by the information above?
(A) the children did not grasp the function of rolling pin.
(B) No two children understood the name "rolling pin" to apply to the same object
(C) The children understood that all rolling pins have the same general shape.
(D) Each child was able to identify correctly only the utensils that he had used.
(E) The children were not able to distinguish the rolling pins they used from other rolling pins
答案是B， 为什么D不对？
谢谢了！
|
|
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号
发表于 2003-11-9 21:53:00
